Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMITSUBISHI2001MIRAGE LS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SELF-DIAGNOSTICSDIAGNOSTIC TESTSDTC P0133: HO2S SLOW RESPONSE (SENSOR 1)DTC SET CRITERIA (1.5L)
2001 Mitsubishi Mirage LS, 4D Sedan, Standard
DTC Set Criteria (1.5L)
2001 Mitsubishi Mirage LS, 4D Sedan, StandardSECTION DTC Set Criteria (1.5L)
DTC P0133 will set under following conditions:
- When the Heated Oxygen Sensor begins to deteriorate, the HO2S signal response becomes poor.
- Engine coolant temperature is 122°F (50°C) or more. Engine speed is 1500-3000 RPM. Intake air temperature is more than 14°F (-10°C). Engine is in closed loop control. Intake manifold pressure is 3.9-9.8 psi (27-67 kPa). The Barometric pressure is 11 PSI (76 kPa) or more. Monitor runs 1 time per trip. Code will set if, front HO2S switches between lean and rich 9 times or less every 10 seconds.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.